[Preliminary Note.-Having somewhat rashly consented to write a short biographical preface to a volume of selections to be made in America from the writings of my friend, Mr. Hughes, I applied to him directly for the needful facts and dates. His answer was an autobiographical letter which I found so interesting that I resolved to print it, omitting only a few intimate allusions natural in such a communication, but with which the public has nothing to do. My temptation was the greater that the letter was not intended for publication, and had, therefore, that charm of unpremeditated confidence which is so apt to be wanting in more deliberate autobiographies. I cannot consult him, (and I confess that I purposely waited till I could not) for he is already at sea, on his way to America, and I fear that friendship may have tempted me to an unwarrantable liberty, but I could not bring myself, even at the risk of seeming indiscreet, to deny to others what had given me so much pleasure.